Steam-boiler or hot-water heater



(No Model.) 2 sheets-sheet 1. A. BOYGB. STEAM BILER 0R HUT WATER HEATER;

WZAHESSES 2. t e. vnu h s e e h S 2 AE C Y 0 B A (No Model.)

STEAM BOILER 0R HOT WATER HEATER.

Patented May 8, 1.894.

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UNITED STATES PATENT EEICE.

ARTHUR B'QYCE, OF ST. LOUIS, MISSOURI. K

STEAM-BOILER OR HOT-WATER HEATER.

SPECIFICATION forming` part of Letters Patent No. 519,418, dated May 8, 1894.

Appiicaion 'med July 1o, 1 ses.

.To all whom t may concern:

Be it known that I, ARTHUR BOYGE, of St. Louis, State of Missouri, have invented certain newand useful Improvements in Steam- Boilers or Hot-Waterr Heater, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part hereof. v

My invention relates 'to steam boilers or hot water heatersjand consists in the novel construction, combination and Varrangement of parts hereinafter specified, and designated in the claims.

yThe object of my invention is to provide an improved device for use in heating buildings by either steam or hot water and for general use as a steam boiler, which shall actto consume the smoke produced in the {ire-box, be very economical in consumption of fuel, of lowcost, and simple in construction and operation. l

In the drawings; Figure 1 is a sectional side elevation of my invention, taken onk the line 1 1 of Fig. 2. Fig. 2 is a front elevation of same with parts broken away, and shown in section. Fig.'3 is a sectional plan view taken on the line 3 3 of Fig. I. Fig. 4 is a similar view to the last, taken on the line 5 5 of Fig. 1. Fig. 5 is a similar view taken on line 4 4 of Fig. 1. Fig. 6 is a similar view taken on the line 6 6 of Fig. 1.v

1,2, 3,4 and 5 indicate respectivelya series of rectangular metallic casing-frames superposed one upon the other, and the lower one of the series mounted upon an ash-pitframe 6. The frames 1, 2, 3, 4 and 5 each have an exterior shell 7 and an interior shell 8, with which awater-space 9 is in direct contact, and frames 2 and 3 have each three separate groups or series of short vertical fire-passages 10 surrounded by water-spaces and inclosed by said exterior shell, and said groups of passages being separated by a definite water space of greater width than the water-'space between the passages of any one group. y(See Figs. 3 and 5.) The lire passages 10 in groups of the frames 2 and 3 are in vertical alignment and communication. The frame 4 is also provided with a vertical series of fire passages 10 at a point adjacent its rear side, and which are in vertical alignment with the rear group of fire passages in said sections 2 Serial No. 479,983. (No model.)

and 3, also in communication therewith and with a fire-box having corrugated walls formed in the frame 5 which is next adjacent the ash-pit-frame 6. The corrugations of the fire box are located vertically, and the inner walls of said tire box are lined for a portion of their height Vwith {ire-brick 11 having sides in contact with the corrugations of the tire-box, and such sides are curved or corrugated to conform to the shape of said corrugations. (See Fig. 6.) y The re-boxand ash-pit are provided with usual rocking grate-bars 12 operated by ahand-lever 13 and a connecting bar or rod 14, said hand lever being pivotally mounted upon the front of the boiler or heater, at one side of the [ire-door 15. The front of the ash-pit is provided with an opening 16 normally closed by a hinged door or damper 17, which may be opened or closed to regulate the admittance of air to the tire in the fire-box. The object of having the Walls of the tire-box corrugated is to increase the heating surface thereof over and above that which would be provided if said walls were plain. Each of the frames 1, 2, 3, 85e., is provided with lugs P18 at each of its corners, and lthese lugs cent frames, so that a water and steam-pipe joint isformed at the point of contact of each section withanother, and each frame, except frame l, has at its upper end and upon its four sides upwardly projecting-flanges 20 which overlap the outer surface of the section above it. The upper section 1 acts as a cap for the boiler or heater, and formed in its under side is a smoke-box 21 'which is in communication with the tire-passagesv '10 of the next adjacent frame 2. This smoke-box is provided with a horizontal inner shell 22 abovewhich is located a steam or water space 23, and short vertical dre-passages 24 extend from said inner shell tothe horizontal outer shell of said box, and are surrounded by said steam or water space, and are preferably in vertical alignment with the iire passages 10 of the next adjacent frame 2. At their lower ends the short passages 24 communicate with the smoke-box 21, and at their upper ends they open to the atmos- IOC phere and are provided with detachable caps or plugs 25, whichmaybe detached for.1 the purpose of cleaning the fire-passages l0 of each frame.

I here show but two identical frames, indicated by the numerals 2 and 3, but l desire to state in this connection that a number of such framesis an important feature of my invention, and maybe increased or diminished, y

according to the size and capacity of: the boiler, adding additional frames of this construction of course increasing the heating surface, and detaching the same diminishing' such surface.

The steam or water space 23 of the cap` frame lis connected to the waterspace 9 of" the next adjacent frame,by short Vertical pas-` sages 26, which are located at opposite sides of said frame l,and project into the smokeboX 2l so as to be subjected to thelaction of the products of `combustion therein., The water spaces of each frame are connected by vertical passages 27 `formed in the"horizontal ends of adjacent frames, at points adjacent the corners of said frames. (See Figs.'2,'3 and 4.)

28 indicates an outlet for the products of combustion, which is Alocated at the front side of the smoke-box 2l and is provided with the' usual pipe collar 29 for attachment of'a smoke-` pipe. The j outlet 28 is in communication with the interior of said l, smoke-box. "The front wall of the outlet 28 is provided witha hinged soot-door 30, and a damper slide 31.

32 indicates a feed-pipe or return-pipe con-4 nection which communicateswith thelower portion of the water space of :the iirefbx frame 5, bymeans of which thefretnrnwater of a system of steam orwater-heating of al building, or by means of Awhich Ifeedlwater, may be forced into ,the boiler.

33 indicates steam or hot water pipe con-f neotions at the top of` the cap frame, by means of which the steam or hotwaterfrom the boiler may be discharged forthe different uses desired.

34 indicates a damper whichi iswlocated transversely ofthe smoke-box and` `secured upon a damperlrod35, which latter hasbear-` ingsin the opposite vertical walls of, saidA chamber so that its endsproject through said walls, and one of L saidends is p rovidedwith` a manipulating handle 3dr This damper is: normally ina vertical position assho'wn in Fig.1,and when so placed,dividesthesmoke-f box 2l at about the center of itsllength, and closes the passage therethrough tothe exit 28.`

37 indicates a comparatively thin water receptacle formed inthe frame 4, and having horizontal walls located directly above the tire box, so that the water contained thereiny is subjected to thedirect heat of saidboX.` The interior ofE this receptacle communicates at its upper side with the waterspace ot the adjacent frame 3 above it, by means of the passages 27.

38 indicates an ignlting chamber located above the water receptacle 37, and above the l for suchY purpose.

iirefboznand is in ,communcation with4 said lire-box byone or a series of vertical passages 39.

Although I have here shown but a single one of these passages in solid lines, yetl have (see Fig. 4,) and if so desired l may use either one or a series. l The centrally located groups vof "tire-passages l0 in the frames 2 and 3 are in communication at their lower ends with the igniting chamber 38. ,i

.t The operation'is as follows: Upon a tire being started l in the., fire-box, the smoke and products of combustion pass rearward therein, and upwardv through the passage onpassages 39, andupward through theallgned tirepassages 1Q ot the three frames 2, 3 and 4 adjacent the rear side of said frames and a -portion of said products is thereby discharged simultaneously into the smoke-box 21 at the top of the boiler and into the igniting chamber 38 just above the tire-box, as indicated by the arrows in Fig. l, and if the damper 34 1s adjustedto the position in,which it is `shown 4in said Fig. l, the Aportion of the said products which enters the smoke box, 'cannot pass direct to they exit 28, but 1s; diverted downward through the central series orgroups of fire passages in theframes 2`and' 3 so that theyenter the rear` portion of the igniting chamber 38, and thereineet and mingle with the products o fvcombnstion passwupward from the tire-box` through the vertical passage 39and asthfe` temperature ofsuch last-named products is considerably higlier i than the products which have passed through `the passageslO, it is presumed thatY the products having such high temperature act to consume orvtoaid inconsuming the smoke which has made itsway to the said igniting chamber. Theremaining products Ofcombustion pass directly upward through., the groups of iirepassages 10 in the frames 2 and 3, enter the forward portion of the smoke box in front of the damper34`and make `their `exit at 28. lt will be observed that thepassage 39 forms, a direct vertical connection between the said box and ,said chamber, and

that saidpassage is always open. ,"When it is `desired to createa stronger draft" thedamper 34 is throwndownward until it partially coversthe upper ends of the group of tire .indicated a series of, them byzdotted lines,

IOC

IlO

1. The improved steam boiler or hot-Water heater, comprising a number of sectional rectangular frames superposed and bolted to eacli other upon a-base-frame, a smoke box formed in the upper portion of the boiler, a water or steam-space above and below said smoke-box,

a tire-box formed inthe lower portion of the boiler, an igniting chamber, formed in the boiler intermediate of said smoke box and said tire-box, a comparatively thin water receptacle formed in the boiler directly above the re-box so that its lower wall will be subjected to the direct action of the heatof said nre-box, and said water-receptacle being located directly beneath said igniting-chamber and provided with a passage which places the said igniting-cliamber and said lire-box in direct communication, and separate fire-passages which connect said re box to said smoke-box and said igniting-chamber to the smoke-boit, substantially as herein specified. 2. The improved steam-boiler or hot-water heater, constructed with an exterior shell, a

fire-box, a smoke-box at the top, an igniting chamberabovcsaidfre-boxbutseparatetherefrom, a direct communication between said fire-box and said igniting-chamber, a group of long fire-passages surrounded by water` space and connecting said fire-box with said ,s chamber at the top of the boiler, the dircction of draft in said long passages and in said connection between the fire-box and the iguiting-chamber being upward, a series of shorter tire-passages connecting said champortion of the iire box with said ignitingchamber, grate bars located in the fire-box, an ash pit under said grate-bars, and a damper in said smoke-box, substantially as hereinl specified.

In testimony whereof I affix my signature in presence of two witnesses.

y ARTHUR BOYCE.

Witnesses:

W. J. SANKEY, EDWARD EVERETT LONGAN. 

